Patent · US Active

Mechanism to handle events in a machine with isolated execution

US8458464B2 · kind B2 · utility

0Cited by

3References

4Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Francis X. McKeen · Portland, US
Lawrence O. Smith · Beaverton, US
Benjamin Crawford Chaffin · Portland, US
Michael Cornaby · Hillsboro, US
Bryant Bigbee · Scottsdale, US

Key dates

Filing date	Aug 26, 2010
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Sep 15, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06F12/1491
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A platform and method for secure handling of events in an isolated environment. A processor executing in isolated execution “IsoX” mode may leak data when an event occurs as a result of the event being handled in a traditional manner based on the exception vector. By defining a class of events to be handled in IsoX mode, and switching between a normal memory map and an IsoX memory map dynamically in response to receipt of an event of the class, data security may be maintained in the face of such events.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.